Enhanced magnetic coercivity of α-Fe2O3 obtained from carbonated 2-line ferrihydrite

  title={Enhanced magnetic coercivity of $\alpha$-Fe2O3 obtained from carbonated 2-line ferrihydrite},
  author={Beatriz Vallina and Juan Diego Rodr{\'i}guez-Blanco and A. P. Brown and Liane G. Benning and J. A. Blanco},
  journal={Journal of Nanoparticle Research},
We report the physical properties of α-Fe2O3 (hematite), synthesized by dry-heating (350–1,000 °C) of a new, poorly ordered iron oxyhydroxide precursor compound that we name carbonated 2-line ferrihydrite. This precursor was characterized by powder X-ray diffraction, Fourier transform infrared spectroscopy, electron microscopy, and thermogravimetric analysis, whereas the α-Fe2O3 was studied with X-ray diffraction, scanning and transmission electron microscopy, and magnetic techniques. α-Fe2O3… 

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